How can fission-powered propulsion help advance deep space exploration, specifically to the outer planets like Jupiter, Saturn, Uranus, and Neptune? This is what a recent study presented at the 56th ...

This screenshot from CCTV (China Central Television) shows China’s first moon rover Yutu, or Jade Rabbit, in an image taken by the camera on the Chang’e 3 moon lander, Dec. 15, 2013. China does not ...

A 3.5-gallon volume of deep space, specifically within the Milky Way's Orion-Cygnus Arm, would contain approximately 4 million neutrinos and about 13,000 gas atoms, predominantly hydrogen and helium.

This astronaut just successfully reached the lowest point on Earth. Kathy Sullivan soared to new heights when she became the first American woman to walk in space in 1984. On Monday, she broke a new ...